The answer to 'lawn fertilization pests' is that common pests that can affect a lawn after fertilization include grubs, chinch bugs, and sod webworms. These pests can damage the grass and cause unsightly brown or dead patches. Symptoms include wilting, discolored grass, and visible insects or larvae in the soil.
For minor infestations, homeowners can try DIY pest control methods like applying insecticidal treatments or using beneficial nematodes. However, for larger or persistent problems, it's best to call a professional lawn care service to properly identify and treat the issue.